Home / 31,348.85-47,046-11,630.21

Finding the Fourth Proportional to 31,348.85, 47,046 and 11,630.21

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Solution

The fourth proportional to 31,348.85, 47,046 and 11,630.21 is: 17,453.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,348.85 : 47,046 = 11,630.21 : x
  2. Step 2: Convert to fraction form
    31,348.85/47,046 = 11,630.21/x
  3. Step 3: Cross multiply
    31,348.85x = 47,046 × 11,630.21
  4. Step 4: Simplify right side
    31,348.85x = 547,154,859.66
  5. Step 5: Solve for x
    x = 547,154,859.66/31,348.85
  6. Step 6: Final answer
    x = 17,453.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.